follow Dictionary.com

What's the "een" in Halloween?

cryptocrystalline

[krip-toh-kris-tl-in, -ahyn] /ˌkrɪp toʊˈkrɪs tl ɪn, -ˌaɪn/
adjective, Mineralogy
1.
having a microscopic crystalline structure.
Origin
1860-1865
1860-65; crypto- + crystalline
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for crypto crystalline

cryptocrystalline

/ˌkrɪptəʊˈkrɪstəlaɪn/
adjective
1.
(of rocks) composed of crystals that can be distinguished individually only by the use of a polarizing microscope
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
crypto crystalline in Science
cryptocrystalline
  (krĭp'tō-krĭs'tə-lĭn, -līn')   
Having a microscopic crystalline structure, as the mineral chalcedony does.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Word Value for crypto

13
14
Scrabble Words With Friends